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Finding the Fourth Proportional to 53,872.89, 80,814.80 and 14,433.99

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Solution

The fourth proportional to 53,872.89, 80,814.80 and 14,433.99 is: 21,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,872.89 : 80,814.80 = 14,433.99 : x
  2. Step 2: Convert to fraction form
    53,872.89/80,814.80 = 14,433.99/x
  3. Step 3: Cross multiply
    53,872.89x = 80,814.80 × 14,433.99
  4. Step 4: Simplify right side
    53,872.89x = 1,166,480,015.05
  5. Step 5: Solve for x
    x = 1,166,480,015.05/53,872.89
  6. Step 6: Final answer
    x = 21,652.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.